Overwintering my strawberr;y towers
I have 2 strawberry towers made of 8" PVC with 5 feet sticking out of the ground (the remaining length is in-ground to provide balance/support).
The towers have either 2" or 1.5" holes (I don't remember which) with around 75 strawberry plants growing in each tower.
The towers are filled with 1-1-1 mix and the strawberries are doing quite nicely.
I'm in Mercer County, NJ (near Princeton), so we have snow and freezing in Winter.
What do I do to protect the plants in Winter so that I don't have a total kill-off by Spring. I can cover them in burlap, but watering them in sub 30 degree weather doesn't seem reasonable.
I am at a loss. Help?